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What are multi-viscosity oils, and how do they affect which oil filter you should install?

April 26, 2017affect filter install Oil Oils

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What are multi-viscosity oils, and how do they affect which oil filter you should install?

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Viscosity is the oil’s resistance to flow. For example, the thicker (higher viscosity) of an oil, the slower it will flow. Multi-viscosity oil, also known as multi-grade oil, is an oil that has the viscosity of the base grade when cold – and the second grade when hot. Purolator recommends that you use the viscosity of the oil that is recommended by your vehicle’s manufacturer.